Engine



FIG. 1 is a perspective view taken from the top, front and right side of an engine showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a top plan view thereof; and

FIG. 6 is a rear elevational view thereof.

The fragmentary broken-line representation of pull handles in FIGS. 1-5, and of auxiliary power take-offs in FIGS. 3-5, are for purposes of illustration only and form no part of the claimed design. 

The ornamental design for an engine, as shown and described. 